Revenue Recognition Schedule of Disaggregation of Revenue (Details) - USD ($) $ in Millions	12 Months Ended
	Jan. 02, 2021	Dec. 28, 2019	Dec. 29, 2018
Disaggregation of Revenue [Line Items]
Net sales	$ 22,885	$ 25,939	$ 24,175
Meats and seafood
Disaggregation of Revenue [Line Items]
Net sales	8,131	9,313	8,635
Dry grocery products
Disaggregation of Revenue [Line Items]
Net sales	3,931	4,427	4,239
Refrigerated and frozen grocery products
Disaggregation of Revenue [Line Items]
Net sales	3,583	4,253	3,898
Dairy
Disaggregation of Revenue [Line Items]
Net sales	2,394	2,685	2,520
Equipment, disposables and supplies
Disaggregation of Revenue [Line Items]
Net sales	2,455	2,483	2,298
Beverage products
Disaggregation of Revenue [Line Items]
Net sales	1,186	1,403	1,315
Produce
Disaggregation of Revenue [Line Items]
Net sales	$ 1,205	$ 1,375	$ 1,270